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(paleontology) Any ornithopod dinosaur of the family Hadrosauridae.
Mounted skeleton of Edmontosaurus annectens, Oxford University Museum
(paleontology) Any ornithopod dinosaur of the family Hadrosauridae.
Illustration of Trachodon mirabilis teeth
(paleontology) Any ornithopod dinosaur of the family Hadrosauridae.
From the mid 19th century through much of the 20th century, hadrosaurs were considered aquatic animals which subsisted on soft water plants